20208909 is an odd 8-digits composite number following 20208908
and preceding 20208910 . In scientific notation, it is written as 2.0208909 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 11434608 positive integers (up to 20208909) that are relatively prime to 20208909.
20208909 has 16 divisors, whose sum is 31096832
The reverse of 20208909 is 90980202
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million two hundred eight thousand nine hundred nine
Scientific notation
2.0208909 × 10^7
Engineering notation
2.0208909 × 10^6
Prime Factorization
3 × 7 × 103 × 9343
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20208909
Product of the distinct prime numbers
The prime factorization of 20208909 is 3 × 7 × 103 × 9343.
Since it has a total of 4 prime factors.
8 , 8 , 89 , 46 , 33 , 593 , 9787 , 4743 , 16338 , 39219 , 939055 , 741943 , 5536222 , 2884249 , 16854848 , 40733365 , 339209779 , 929764664 , 1778149595 , 7571390818
n×2
40417818
n×3
60626727
n×4
80835636
n×5
101044545
n÷2
10104454.5
n÷3
6736303
n÷3
5052227.25
n÷5
4041781.8
n2
408400002970281
n3
8.2533184956261E+21
n4
1.6679056242613E+29
n5
3.3706552981284E+36
2 √n
4495.4320148346
3 √n
272.38360037201
4 √n
67.047982928904
5 √n
28.914026429228
1 , 3 , 7 , 21 , 103 , 309 , 721 , 2163 , 9343 , 28029 , 65401 , 196203 , 962329 , 2886987 , 6736303 , 20208909
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20208908
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20208909 can be divided by 16 positive divisors.
The sum of these divisors (counting 20208909) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101000101110100001101
3
Ternary
1102000201102010
4
Quaternary
1031011310031
5
Quinary
20133141114
6
Senary
2001051433
8
Octal
115056415
10
Decimal
20208909
12
Duodecimal
6926b79
16
Hexadecimal
1345d0d
20
Vigesimal
666259
36
Base36
c15al
md5
02120a438997617bddeee121134c614d
sha1
7f8d96258e8f06fcf1b1d5666589e65ff7b6524b
sha256
a8426b78222dc4fb854a081d99280259b8a2a2bac8b0f0c750786c95fbf29424
sha512
e91407bee0f31dccf18f521b8f32d0f7b1d66c3ad9f6ff80cee8a7fe7b4287accee5f7ae09ec0fd7afb3099c573ec47afc0445e0dfb15746f12ca2c88660f32c
ripemd-160
a7e0a933802368edf24659f486e33133c2c60bbf
Diameter
40417818
Circumference
126976320.10293
Area
1.2830264490575E+15
Volume
3.4571419671461E+22
Surface area
5.1321057962299E+15
Circumference
126976320.10293
Perimeter
80835636
Area
408400002970281
Diagonal
28579713.188564
Surface area
2450400017821686
Volume
8.2533184956261E+21
Space diagonal
35002857.153536
Perimeter
60626727
Area
1.7684238873895E+14
Altitude
17501428.576768
Surface area
1.7684238873895E+14
Volume
9.726629125916E+20
Height
9526571.0628546